Hello I am using the msp430fr4133 mcu.
If the system is short while using the fram memory, the specific memory area is initialized(or erase?) to 0xff.
The strange thing os that there is no chance of overwriting in the area because the write is done only once in the first time in logic.(Even if it reboots, if it has already been written, it will not be written)
Below are the memory values during normal and after short.
0x00001830: FF FF FF FF FF FF FF FF FF FF FF FF FF E6 07 0B | ................
0x00001840: 01 10 16 5B 07 00 00 1A 07 00 00 00 00 00 00 00 | ...[............
0x00001850: 00 00 00 CD 06 00 00 C9 06 00 00 FF FF FF FF 5B | ...............[
0x00001860: 07 00 00 1A 07 00 00 00 00 00 00 00 00 00 00 CD | ................
0x00001870: 06 00 00 C9 06 00 00 FF FF FF FF FF FF FF FF FF | ................
0x00001880: ------- b l a n k ----(all 0xFF)-------
0x00001830: FF FF FF FF FF FF FF FF FF FF FF FF FF E6 07 0B | ................
0x00001840: 03 0F 16 5B 07 00 00 1A 07 00 00 00 00 00 00 00 | ...[............
0x00001850: 00 00 00 CD 06 00 00 C9 06 00 00 FF FF FF FF FF | ................
0x00001860: ------- b l a n k ----(all 0xFF)-------
Is it possible to change only a specific area of a fram after a short?
thanks
